mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 21:53:28 +07:00
6f5521da02
With this, nvbios /sys/kernel/debug/dri/*/vbios.rom now works! Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Karol Herbst <kherbst@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
282 lines
7.0 KiB
C
282 lines
7.0 KiB
C
/*
|
|
* Copyright (C) 2009 Red Hat <bskeggs@redhat.com>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial
|
|
* portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Authors:
|
|
* Ben Skeggs <bskeggs@redhat.com>
|
|
*/
|
|
|
|
#include <linux/debugfs.h>
|
|
#include <nvif/class.h>
|
|
#include <nvif/if0001.h>
|
|
#include "nouveau_debugfs.h"
|
|
#include "nouveau_drv.h"
|
|
|
|
static int
|
|
nouveau_debugfs_vbios_image(struct seq_file *m, void *data)
|
|
{
|
|
struct drm_info_node *node = (struct drm_info_node *) m->private;
|
|
struct nouveau_drm *drm = nouveau_drm(node->minor->dev);
|
|
int i;
|
|
|
|
for (i = 0; i < drm->vbios.length; i++)
|
|
seq_printf(m, "%c", drm->vbios.data[i]);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
nouveau_debugfs_strap_peek(struct seq_file *m, void *data)
|
|
{
|
|
struct drm_info_node *node = m->private;
|
|
struct nouveau_drm *drm = nouveau_drm(node->minor->dev);
|
|
int ret;
|
|
|
|
ret = pm_runtime_get_sync(drm->dev->dev);
|
|
if (ret < 0 && ret != -EACCES)
|
|
return ret;
|
|
|
|
seq_printf(m, "0x%08x\n",
|
|
nvif_rd32(&drm->client.device.object, 0x101000));
|
|
|
|
pm_runtime_mark_last_busy(drm->dev->dev);
|
|
pm_runtime_put_autosuspend(drm->dev->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
nouveau_debugfs_pstate_get(struct seq_file *m, void *data)
|
|
{
|
|
struct drm_device *drm = m->private;
|
|
struct nouveau_debugfs *debugfs = nouveau_debugfs(drm);
|
|
struct nvif_object *ctrl = &debugfs->ctrl;
|
|
struct nvif_control_pstate_info_v0 info = {};
|
|
int ret, i;
|
|
|
|
if (!debugfs)
|
|
return -ENODEV;
|
|
|
|
ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_INFO, &info, sizeof(info));
|
|
if (ret)
|
|
return ret;
|
|
|
|
for (i = 0; i < info.count + 1; i++) {
|
|
const s32 state = i < info.count ? i :
|
|
NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT;
|
|
struct nvif_control_pstate_attr_v0 attr = {
|
|
.state = state,
|
|
.index = 0,
|
|
};
|
|
|
|
ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_ATTR,
|
|
&attr, sizeof(attr));
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (i < info.count)
|
|
seq_printf(m, "%02x:", attr.state);
|
|
else
|
|
seq_printf(m, "%s:", info.pwrsrc == 0 ? "DC" :
|
|
info.pwrsrc == 1 ? "AC" : "--");
|
|
|
|
attr.index = 0;
|
|
do {
|
|
attr.state = state;
|
|
ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_ATTR,
|
|
&attr, sizeof(attr));
|
|
if (ret)
|
|
return ret;
|
|
|
|
seq_printf(m, " %s %d", attr.name, attr.min);
|
|
if (attr.min != attr.max)
|
|
seq_printf(m, "-%d", attr.max);
|
|
seq_printf(m, " %s", attr.unit);
|
|
} while (attr.index);
|
|
|
|
if (state >= 0) {
|
|
if (info.ustate_ac == state)
|
|
seq_printf(m, " AC");
|
|
if (info.ustate_dc == state)
|
|
seq_printf(m, " DC");
|
|
if (info.pstate == state)
|
|
seq_printf(m, " *");
|
|
} else {
|
|
if (info.ustate_ac < -1)
|
|
seq_printf(m, " AC");
|
|
if (info.ustate_dc < -1)
|
|
seq_printf(m, " DC");
|
|
}
|
|
|
|
seq_printf(m, "\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t
|
|
nouveau_debugfs_pstate_set(struct file *file, const char __user *ubuf,
|
|
size_t len, loff_t *offp)
|
|
{
|
|
struct seq_file *m = file->private_data;
|
|
struct drm_device *drm = m->private;
|
|
struct nouveau_debugfs *debugfs = nouveau_debugfs(drm);
|
|
struct nvif_object *ctrl = &debugfs->ctrl;
|
|
struct nvif_control_pstate_user_v0 args = { .pwrsrc = -EINVAL };
|
|
char buf[32] = {}, *tmp, *cur = buf;
|
|
long value, ret;
|
|
|
|
if (!debugfs)
|
|
return -ENODEV;
|
|
|
|
if (len >= sizeof(buf))
|
|
return -EINVAL;
|
|
|
|
if (copy_from_user(buf, ubuf, len))
|
|
return -EFAULT;
|
|
|
|
if ((tmp = strchr(buf, '\n')))
|
|
*tmp = '\0';
|
|
|
|
if (!strncasecmp(cur, "dc:", 3)) {
|
|
args.pwrsrc = 0;
|
|
cur += 3;
|
|
} else
|
|
if (!strncasecmp(cur, "ac:", 3)) {
|
|
args.pwrsrc = 1;
|
|
cur += 3;
|
|
}
|
|
|
|
if (!strcasecmp(cur, "none"))
|
|
args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_UNKNOWN;
|
|
else
|
|
if (!strcasecmp(cur, "auto"))
|
|
args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_PERFMON;
|
|
else {
|
|
ret = kstrtol(cur, 16, &value);
|
|
if (ret)
|
|
return ret;
|
|
args.ustate = value;
|
|
}
|
|
|
|
ret = pm_runtime_get_sync(drm->dev);
|
|
if (IS_ERR_VALUE(ret) && ret != -EACCES)
|
|
return ret;
|
|
ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_USER, &args, sizeof(args));
|
|
pm_runtime_put_autosuspend(drm->dev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return len;
|
|
}
|
|
|
|
static int
|
|
nouveau_debugfs_pstate_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, nouveau_debugfs_pstate_get, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations nouveau_pstate_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = nouveau_debugfs_pstate_open,
|
|
.read = seq_read,
|
|
.write = nouveau_debugfs_pstate_set,
|
|
};
|
|
|
|
static struct drm_info_list nouveau_debugfs_list[] = {
|
|
{ "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
|
|
{ "strap_peek", nouveau_debugfs_strap_peek, 0, NULL },
|
|
};
|
|
#define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
|
|
|
|
static const struct nouveau_debugfs_files {
|
|
const char *name;
|
|
const struct file_operations *fops;
|
|
} nouveau_debugfs_files[] = {
|
|
{"pstate", &nouveau_pstate_fops},
|
|
};
|
|
|
|
int
|
|
nouveau_drm_debugfs_init(struct drm_minor *minor)
|
|
{
|
|
struct nouveau_drm *drm = nouveau_drm(minor->dev);
|
|
struct dentry *dentry;
|
|
int i, ret;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(nouveau_debugfs_files); i++) {
|
|
dentry = debugfs_create_file(nouveau_debugfs_files[i].name,
|
|
S_IRUGO | S_IWUSR,
|
|
minor->debugfs_root, minor->dev,
|
|
nouveau_debugfs_files[i].fops);
|
|
if (!dentry)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = drm_debugfs_create_files(nouveau_debugfs_list,
|
|
NOUVEAU_DEBUGFS_ENTRIES,
|
|
minor->debugfs_root, minor);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Set the size of the vbios since we know it, and it's confusing to
|
|
* userspace if it wants to seek() but the file has a length of 0
|
|
*/
|
|
dentry = debugfs_lookup("vbios.rom", minor->debugfs_root);
|
|
if (!dentry)
|
|
return 0;
|
|
|
|
d_inode(dentry)->i_size = drm->vbios.length;
|
|
dput(dentry);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
nouveau_debugfs_init(struct nouveau_drm *drm)
|
|
{
|
|
int ret;
|
|
|
|
drm->debugfs = kzalloc(sizeof(*drm->debugfs), GFP_KERNEL);
|
|
if (!drm->debugfs)
|
|
return -ENOMEM;
|
|
|
|
ret = nvif_object_init(&drm->client.device.object, 0,
|
|
NVIF_CLASS_CONTROL, NULL, 0,
|
|
&drm->debugfs->ctrl);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
nouveau_debugfs_fini(struct nouveau_drm *drm)
|
|
{
|
|
if (drm->debugfs && drm->debugfs->ctrl.priv)
|
|
nvif_object_fini(&drm->debugfs->ctrl);
|
|
|
|
kfree(drm->debugfs);
|
|
drm->debugfs = NULL;
|
|
}
|